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UTIME(3)                   Library Functions Manual                   UTIME(3)

NAME
     utime -- set file times

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <&lt;utime.h>&gt;

     int
     utime(const char *file, const struct utimbuf *timep);

DESCRIPTION
     This interface is obsoleted by utimes(2).

     The utime() function sets the access and modification times of the named
     file.

     If timep is NULL, the access and modification times are set to the
     current time.  The calling process must be the owner of the file or have
     permission to write the file.

     If timep is non-NULL, time is assumed to be a pointer to a utimbuf
     structure, as defined in <utime.h>:

           struct utimbuf {
                   time_t actime;          /* Access time */
                   time_t modtime;         /* Modification time */
           };

     The access time is set to the value of the actime member, and the
     modification time is set to the value of the modtime member.  The times
     are measured in seconds since 0 hours, 0 minutes, 0 seconds, January 1,
     1970 Coordinated Universal Time (UTC).  The calling process must be the
     owner of the file or be the super-user.

     In either case, the inode-change-time of the file is set to the current
     time.

RETURN VALUES
     Upon successful completion, a value of 0 is returned.  Otherwise, a value
     of -1 is returned and errno is set to indicate the error.

ERRORS
     utime() will fail if:

     [EACCES]           Search permission is denied for a component of the
                        path prefix; or the times argument is NULL and the
                        effective user ID of the process does not match the
                        owner of the file, and is not the super-user, and
                        write access is denied.

     [EFAULT]           file or times points outside the process's allocated
                        address space.

     [EINVAL]           The pathname contains a character with the high-order
                        bit set.

     [EIO]              An I/O error occurred while reading or writing the
                        affected inode.

     [ELOOP]            Too many symbolic links were encountered in
                        translating the pathname.

     [ENAMETOOLONG]     A component of a pathname exceeded 255 characters, or
                        an entire path name exceeded 1023 characters.

     [ENOENT]           The named file does not exist.

     [ENOTDIR]          A component of the path prefix is not a directory.

     [EPERM]            The times argument is not NULL and the calling
                        process's effective user ID does not match the owner
                        of the file and is not the super-user.

     [EROFS]            The file system containing the file is mounted read-
                        only.

SEE ALSO
     stat(2), utimes(2)

STANDARDS
     The utime() function conforms to IEEE Std 1003.1-1990 (``POSIX.1'').  It
     was however marked as legacy in the IEEE Std 1003.1-2008 (``POSIX.1'')
     revision of the standard.

HISTORY
     A utime() function appeared in Version 7 AT&T UNIX.

NetBSD 6.1.5                    April 29, 2010                    NetBSD 6.1.5